Question

14. Which of the following best defines homeostasis? (Points : 3)

Answer 1

14. the maintenance of an organism’s internal environment within certain limits

15.populations, communities, and ecosystems

Answer 2

14. A. 
Homeostasis is the process by which an organism maintain constancy in its internal environment. Homeostasis is very important because if it not maintained the necessary biochemical processes that ought to take place in the body will be disrupted and this can lead to fatal consequences.
15. The correct option is: POPULATION, COMMUNITY AND ECOSYSTEM.
An organism is a part of a specific population, many populations of different species form a community  and different communities of living organisms form the ecosystem.